Probably LEGO Star Wars, but no idea which set.
The wedge piece is 43712pb023 Wedge 6 x 4 Triple Curved with Air Vent and Hatch Pattern (Sticker) - Set 7734 and comes from set 7734-1 Cargo Plane.
The tubular brick is 6042 Brick, Modified Octagonal 2 x 2 x 3 1/3 with Side Studs. It came in only three sets in Green, all from 1997, all from the AquaZone theme. These sets are 2160, 2161 and 2162.
The other two pieces are too generic to be attributed to a specific set.